Add BrightSurf on Google Email

Science News for January 7, 2015


Levitation recreates nature's dumbbells

Scientists at the University of Nottingham used magnetic levitation to manufacture wax models of tektites, which are tiny glass objects formed by asteroid impacts. The research validates numerical models of spinning droplets and provides new information on tektite formation.

SourceUniversity of Nottingham·JournalScientific Reports·DateJan 7, 2015

Better dam planning strategies

Researchers created a new method to estimate global dam impacts on river flow and fragmentation using precise world map data. The study found that 48% of the world's river volume is moderately or severely affected by dams, with this number doubling if all planned dams are completed.

SourceMcGill University·JournalEnvironmental Research Letters·DateJan 7, 2015

Cheap asphalt provides 'green' carbon capture

Rice University researchers have developed a new carbon capture material that can hold 114% of its weight in carbon dioxide, capturing more than current methods. The material is made from inexpensive asphalt and can be reused multiple times without degrading.

SourceRice University·JournalACS Applied Materials & Interfaces·DateJan 7, 2015

Humans erode soil 100 times faster than nature

Researchers found that rates of hillslope erosion before European settlement were about an inch every 2500 years, while during peak land disturbance in the late 1800s and early 1900s, rates spiked to an inch every 25 years. This indicates a 100-fold increase in soil loss due to human activities.

SourceUniversity of Vermont·JournalGeology·DateJan 7, 2015

Potential new tool to monitor radiotherapy side effects

A new tool assesses radiotherapy-related toxicities in lung cancer patients using patient-reported outcomes, revealing strongest agreement with quality-of-life measures. The study found that clinicians' recorded toxicities underestimated their severity, highlighting the potential for early detection and improved treatment.

SourceUniversity of Manchester·JournalRadiotherapy and Oncology·DateJan 7, 2015

Broad immune response may be needed to destroy latent HIV

A team of Yale and Johns Hopkins researchers identified a strategy to stimulate killer T cells to target and destroy infected cells harboring dormant viruses. The study suggests that directing CTL responses to unaltered pieces of virus may be the future direction for developing a therapeutic vaccine to clear HIV.

SourceYale University·JournalNature·DateJan 7, 2015

Risks of youth rugby need urgent scrutiny

The article highlights the lack of injury data in youth rugby, putting junior players at risk. Creative match scheduling and preseason training can help improve safety, but a comprehensive dataset is needed to set rational policies.

SourceBMJ Group·JournalThe BMJ·DateJan 7, 2015

Brain imaging may help predict future behavior

Recent studies using brain imaging show promise in predicting future behaviors such as reading performance, math skills, criminality, and response to treatment. The technology may help identify individuals at high risk of failure, allowing for early interventions and prevention strategies.

SourceCell Press·JournalNeuron·DateJan 7, 2015

Selective functionalization synthesizes chemotherapeutic natural products

Researchers at Emory University and Nagoya University developed a novel concise entry to dictyodendrins, a family of natural products with potential cancer chemotherapy and treatment for Alzheimer's disease. The study demonstrates sequential C-H functionalization can streamline the construction of complex structures.

SourceInstitute of Transformative Bio-Molecules (ITbM), Nagoya University·JournalJournal of the American Chemical Society·DateJan 7, 2015

An avocado a day may help keep bad cholesterol at bay

Researchers found that eating one avocado a day as part of a moderate-fat diet can improve bad cholesterol levels in overweight and obese individuals. The study also showed favorable results for total cholesterol, triglycerides, small dense LDL, non-HDL cholesterol, and other cardio-metabolic risk factors.

SourceAmerican Heart Association·JournalJournal of the American Heart Association·DateJan 7, 2015

An avocado a day keeps the cardiologist away

A recent study found that incorporating one avocado per day into a moderate-fat, cholesterol-lowering diet significantly lowers LDL and total cholesterol levels. The researchers tested three diets, including one with an added avocado, and found the avocado diet to be more effective in reducing bad cholesterol.

Special delivery

Researchers at UC Santa Barbara have developed a method to target inflamed tissues by utilizing monocytes, which can be attached to 'cellular backpacks' coated with antibodies. These particles can deliver therapeutic agents to the site of inflammation, potentially improving treatment outcomes and reducing side effects.

SourceUniversity of California - Santa Barbara·JournalJournal of Controlled Release·DateJan 7, 2015

Social equity in urban transportation planning

A recent study published in Transport Policy found that many North American cities prioritize environmental and congestion-reduction goals over social-equity objectives. Researchers analyzed 18 metropolitan areas and identified clear indicators for promoting social equity, such as changes in accessibility to desired destinations and di...

SourceMcGill University·JournalTransport Policy·DateJan 7, 2015

Having a hard time focusing?

A research team at McGill University has identified a complex of neurons in the lateral prefrontal cortex that interact to filter visual information while ignoring distractions. The discovery has far-reaching implications for understanding diseases such as autism, ADHD, and schizophrenia.

SourceMcGill University·JournalNeuron·DateJan 7, 2015

Shedding light on why blue LEDS are so tricky to make

Scientists at UCL have discovered the root of the problem in making blue LEDs by examining gallium nitride's unusual behavior using sophisticated computer simulations. The study reveals that doping with magnesium is necessary to achieve the desired properties, but the complexity of the process was previously unknown.

SourceUniversity College London·JournalPhysical Review Letters·DateJan 7, 2015

Music cuts across cultures

Researchers discovered that despite cultural differences, listeners from various groups responded similarly to the excitement and calmness of music. The study used emoticons and physiological measurements to compare reactions to Western and Pygmy music.

SourceMcGill University·JournalFrontiers in Psychology·DateJan 7, 2015